Wednesday at 9 on “Happy Days,” Fonzie rides a killer bull for $1000 prize. At 9:30 on “Laverne & Shirley,” the girls are blamed when Lenny and Squiggy trash a hotel room. Catch an hour of great laughs from the 1970s tonight. Then stayed tuned for News 8 at 10 on WGAL 8.2, MeTV Susquehanna Valley!